Apparatus and methods for efficient delivery of electronic program guide data

ABSTRACT

Apparatus and method for improving the bandwidth efficiency of delivering electronic program guide (EPG) data to consumer premises equipment (CPE). In one exemplary embodiment, electronic guide data is rendered by devices away from the CPE, shifting the executing data- and bandwidth-heavy operations away from the CPE. In particular, one or more gateways at the user&#39;s home bears the processing, memory, bandwidth load to reduce the inefficiency of delivering redundant information to CPE(s) interfacing with the gateway(s). Using guide data it receives from the cloud, the gateway produces and delivers to the CPE one or more “simple views” of the guide data, including a video stream, still image, or simple HTML or other renderable formats. As the end user interacts with the CPE, the user receives a series of the simple views, allowing the rich experience that is typically given by EPG rendered directly by the CPE.

RELATED APPLICATIONS

The present disclosure is related to co-owned U.S. Pat. No. 6,772,433issued on Aug. 3, 2004 and entitled “INTERACTIVE PROGRAM GUIDE FORDESIGNATING INFORMATION ON AN INTERACTIVE PROGRAM GUIDE DISPLAY” and toco-owned U.S. Pat. No. 7,073,189 issued on Jul. 4, 2006 and entitled“PROGRAM GUIDE AND RESERVATION SYSTEM FOR NETWORK BASED DIGITALINFORMATION AND ENTERTAINMENT STORAGE AND DELIVERY SYSTEM”, each of theforegoing are incorporated herein by reference in their entirety.

COPYRIGHT

A portion of the disclosure of this patent document contains materialthat is subject to copyright protection. The copyright owner has noobjection to the facsimile reproduction by anyone of the patent documentor the patent disclosure, as it appears in the Patent and TrademarkOffice patent files or records, but otherwise reserves all copyrightrights whatsoever.

BACKGROUND

1. Field of Invention

The disclosure relates generally to the field of data and contentdelivery. In one exemplary aspect, the disclosure relates to apparatusand methods for efficient delivery of electronic program data.

2. Description of Related Technology

Recent advances in digital information processing and technology havemade a whole range of services and functions available for delivery toconsumers at their premises for very reasonable prices or subscriptionfees. These services and functions include digital content orprogramming (movies, etc.), digital video-on-demand (VOD), personalvideo recorder (PVR) and networked PVR (nPVR), Internet Protocoltelevision (IPTV), digital media playback and recording, as well highspeed Internet access and IP-based telephony (e.g., VoIP). Otherservices available to network users include access to, and recording of,digital music (e.g., MP3 files), as well as local area networking(including wire-line and wireless local area networks) for distributingthese services throughout the user's premises, and beyond.Network-delivered or network-based gaming and applications (“apps”) havealso each recently come to the forefront as popular content areas forsubscribers.

In order to assist a subscriber in navigating this myriad of deliverablecontent, electronic guides are available. Modern electronic programguides and interactive program guides (collectively “EPGs”) providemenus that present broadcast programming or scheduling information forcurrent and upcoming programming. EPG commonly are used in televisionsystems to enable a user to view information relating to broadcastcontent.

An interactive EPG enables a user to interact with the presented guidedata. User interactions may include navigation of the menus, selectionof content, and scheduling a recording or viewing using a remote controlapparatus, keyboard, or other means of input.

In many current systems, data necessary to create an EPG is delivered toeach device by content distributors and/or vendors. The data may bedelivered via in-band or out-of-band signaling. The client devices thenuse the information to build the entire EPG. Alternatively, the EPG maybe generated at a network or cloud entity and delivered to the devices(including delivery of updates relating thereto).

Each of the above-described scenarios suffers from inefficiency. Forexample, in the instance the entire EPG is built at the client device,significant bandwidth and other resources must be dedicated to the datadelivery and delivery of updates. In addition, the client devicesthemselves must comprise sufficient internal processing resources inorder to piece together the EPG, and additionally update the EPG witheach data update. Network resources and bandwidth are also used toprovide the compiled EPG to the devices as discussed above. Moreover,the foregoing methods both require a significant amount of wastedresources attributable to the steady influx of data requests from thedevices (such as for EPG data and/or for the completed EPG, and updatesto each).

Therefore, what are needed are methods and apparatus for a moreefficient delivery of electronic program guide data. Ideally, theimproved methods and apparatus would alleviate the significant burden onresources which the current systems create and increase overallefficiency of the EPG system.

SUMMARY

The present disclosure addresses the forgoing needs by providing, interalfa, apparatus and methods for efficient delivery of electronic programguide data.

In one aspect of the disclosure, a method for delivering electronicprogram guide (EPG) data to one or more client devices is disclosed. Inone embodiment, the method includes: receiving a plurality of guidedata; generating at least one simplified version of one of a pluralityof display screens representative of the EPG using at least a portion ofthe plurality of guide data; and providing the at least one simplifiedversion of the one of the plurality of display screens representative ofthe EPG to the one or more client devices. In one variant, the at leastone simplified version of the one of the plurality of display screensrepresentative of the EPG comprises one of: an image, a video, and/or aweb page.

In another aspect, a gateway apparatus for delivering EPG data to aconsumer premises equipment (CPE) is disclosed. In one embodiment, theapparatus includes a network interface, a processor, and at least onecomputer program operative to run on the processor. In one variant, thecomputer program includes a plurality of instructions which areconfigured to, when executed, cause the apparatus to receive a pluralityof guide data via the network interface; generate a simplified screenfor display as an EPG at the CPE using the plurality of guide data, thesimplified screen comprising one of: a still image, a video clip, and/ora web page pointer; and transmit the simplified screen to the CPE viathe network interface.

In a further aspect, a consumer premises equipment (CPE) adapted forreceiving electronic program guide (EPG) data is disclosed. In oneembodiment, the CPE includes a plurality of network interfaces, at leastone of the plurality of network interfaces in communication with agateway apparatus; a processor; and at least one computer programoperative to run on the processor. In one variant, the computer programincludes a plurality of instructions which are configured to, whenexecuted, cause the CPE to transmit a user command to the gatewayapparatus via the at least one of the plurality of network interfaces;and receive one or more simple views of an EPG screen via the at leastone of the plurality of network interfaces; wherein the one or moresimple views of an EPG screen comprise an image, a video stream, and/ora web page.

These and other aspects of the disclosure shall become apparent whenconsidered in light of the disclosure provided herein.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a functional block diagram illustrating an exemplary hybridfiber/coax (HFC) cable network configuration useful with the presentdisclosure.

FIG. 1a is a functional block diagram illustrating one exemplary HFCcable network headend configuration useful with the present disclosure.

FIG. 1b is a functional block diagram illustrating one exemplary localservice node configuration useful with the present disclosure.

FIG. 1c is a functional block diagram illustrating one exemplarypacketized content delivery network architecture useful with the presentdisclosure.

FIG. 2 is a functional block diagram illustrating one exemplaryembodiment of a network configuration for providing guide data accordingto the present disclosure.

FIG. 3 is a logical flow diagram illustrating an exemplary method forproviding guide data according to the present disclosure.

FIG. 3a is a logical flow diagram illustrating an exemplary method forproviding a video-based simple view of guide data according to thepresent disclosure.

FIG. 3b is a logical flow diagram illustrating an exemplary method ofproviding a picture-based simple view of guide data according to thepresent disclosure.

FIG. 3c is a logical flow diagram illustrating an exemplary method ofproviding a pointers-based simple view of guide data according to thepresent disclosure.

FIG. 4 is a functional block diagram illustrating an exemplary clientdevice for use with the present disclosure.

FIG. 5 is a functional block diagram illustrating an exemplary gatewaydevice for use with the present disclosure.

All Figures © Copyright 2014 Time Warner Cable Enterprises LLC. Allrights reserved.

DETAILED DESCRIPTION

Reference is now made to the drawings wherein like numerals refer tolike parts throughout.

As used herein, the term “application” refers generally to a unit ofexecutable software that implements a certain functionality or theme.The themes of applications vary broadly across any number of disciplinesand functions (such as on-demand content management, e-commercetransactions, brokerage transactions, home entertainment, calculator,etc.), and one application may have more than one theme. The unit ofexecutable software generally runs in a predetermined environment; forexample, the unit could comprise a downloadable Java Xlet™ that runswithin the JavaTV™ environment.

As used herein, the term “client device” includes, but is not limitedto, set-top boxes (e.g., DSTBs), gateways, modems, personal computers(PCs), and minicomputers, whether desktop, laptop, or otherwise, andmobile devices such as handheld computers, tablets, PDAs, personal mediadevices (PMDs), tablets, and smartphones.

As used herein, the terms “cloud” and “cloud device” refer to computingresources residing in a network outside of the subscriber network. Theseresources include software and information are generally accessible overthe Internet or other means of communication with other computers, datastorage, or other devices.

As used herein, the term “codec” refers to a video, audio, or other datacoding and/or decoding algorithm, process or apparatus including,without limitation, those of the MPEG (e.g., MPEG-1, MPEG-2,MPEG-4/H.264, etc.), Real (RealVideo, etc.), AC-3 (audio), DiVX,XViD/ViDX, Windows Media Video (e.g., WMV 7, 8, 9, 10, or 11), ATI Videocodec, or VC-1 (SMPTE standard 421 M) families.

As used herein, the terms “computer program,” “software,” or “softwareapplication” are meant to include any sequence or human or machinecognizable steps which perform a function. Such program may be renderedin virtually any programming language or environment including, forexample and without limitation, C/C++, Fortran, COBOL, PASCAL, assemblylanguage, markup languages (e.g., HTML, SGML, XML, VoXML), and the like,as well as object-oriented environments such as the Common ObjectRequest Broker Architecture (CORBA), Java™ (including J2ME, Java Beans,etc.), Binary Runtime Environment (e.g., BREW), and the like.

The terms “consumer premises equipment” (CPE) and “consumer device”refer without limitation to any type of electronic equipment for usewithin a consumer's or user's premises and connected to a contentdistribution network. The term “consumer device” includes terminaldevices that have access to digital television content via a satellite,cable, or terrestrial network. The term “consumer premises equipment”(CPE) includes such electronic equipment such as set-top boxes (e.g.,DSTBs or IPTV devices), televisions, cable modems (CMs), embeddedmultimedia terminal adapters (eMTAs), whether stand-alone or integratedwith other devices, digital video recorders (DVR), gateway storagedevices, and ITV personal computers.

As used herein, the term “DOCSIS” refers to any of the existing orplanned variants of the Data Over Cable Services InterfaceSpecification, including for example DOCSIS versions 1.0, 1.1, 2.0 and3.0.

As used herein, the terms “electronic program guide” and “interactiveprogram guide” (collectively “EPG”) are used interchangeably to refer tolists, menus, buttons, graphics, navigation icons, and other elementsdisplayed to the user that present information regarding contentincluding broadcast programming and/or scheduling information relatingto the content such as current and upcoming broadcasts over televisionand other media. These elements may be static, animated, and/orinteractive.

As used herein, the term “headend” refers generally to a networkedsystem controlled by an operator (e.g., an MSO or multiple systemsoperator) that distributes programming to MSO clientele using clientdevices. Such programming may include literally any informationsource/receiver including, inter alia, free-to-air TV channels, pay TVchannels, interactive TV, and the Internet.

As used herein, the terms “Internet” and “internet” are usedinterchangeably to refer to inter-networks including, withoutlimitation, the Internet.

As used herein, the term “memory” includes any type of integratedcircuit or other storage device adapted for storing digital dataincluding, without limitation, ROM. PROM, EEPROM, DRAM, SDRAM, DDR/2SDRAM, EDO/FPMS, RLDRAM, SRAM, “flash” memory (e.g., NAND/NOR), andPSRAM.

As used herein, the terms “microprocessor” and “digital processor” aremeant generally to include all types of digital processing devicesincluding, without limitation, digital signal processors (DSPs), reducedinstruction set computers (RISC), general-purpose (CISC) processors,microprocessors, gate arrays (e.g., FPGAs), PLDs, reconfigurablecomputer fabrics (RCFs), array processors, secure microprocessors, andapplication-specific integrated circuits (ASICs). Such digitalprocessors may be contained on a single unitary IC die, or distributedacross multiple components.

As used herein, the terms “MSO” or “multiple systems operator” referwithout limitation to a cable, fiber to the home (FTTH), fiber to thecurb (FTTC), satellite, Hybrid Fiber Copper (HFCu), or terrestrialnetwork provider having infrastructure required to deliver servicesincluding programming and data over those mediums.

As used herein, the term “network” refers generally to any type oftelecommunications or data network including, without limitation, hybridfiber coax (HFC) networks, HFCu networks, satellite networks, telconetworks, and data networks (including MANs, WANs, LANs, WLANs,internets, and intranets). Such networks or portions thereof may utilizeany one or more different topologies (e.g., ring, bus, star, loop,etc.), transmission media (e.g., wired/RF cable, RF wireless, millimeterwave, optical, etc.) and/or communications or networking protocols(e.g., SONET, DOCSIS, IEEE Std. 802.3, ATM, X.25, Frame Relay, 3GPP,3GPP2, LTE/LTE-A, WAP, SIP, UDP, FTP, RTP/RTCP, H.323, etc.).

As used herein, the term “network interface” refers to any signal, data,or software interface with a component, network or process including,without limitation, those of the FireWire (e.g., FW400, FW800, etc.),USB (e.g., USB2, USB 3.0), Ethernet (e.g., 10/100, 10/100/1000 (GigabitEthernet), 10-Gig-E, etc.), MoCA, Coaxsys (e.g., TVnet™), radiofrequency tuner (e.g., in-band or OOB, cable modem, etc.), Wi-Fi(802.11), WiMAX (802.16), PAN (e.g., 802.15), cellular (e.g., LTE/LTE-A,3GPP, 3GPP2, UMTS), or IrDA families.

As used herein, the term “node” refers to any functional entityassociated with a network, such as for example an OLT or ONU, whetherphysically discrete or distributed across multiple locations.

As used herein, the term “QAM” refers to modulation schemes used forsending signals over cable networks. Such modulation scheme might useany constellation level (e.g. QPSK, 16-QAM, 64-QAM, 256-QAM, etc.)depending on details of a cable network. A QAM may also refer to aphysical channel modulated according to the schemes.

As used herein, the term “server” refers without limitation to anycomputerized component, system or entity regardless of form which isadapted to provide data, files, applications, content, or other servicesto one or more other devices or entities on a computer network.

As used herein, the term “service”, “content”, “program” and “stream”are sometimes used synonymously to refer to a sequence of packetizeddata that is provided in what a subscriber may perceive as a service. A“service” (or “content”, or “stream”) in the former, specialized sensemay correspond to different types of services in the latter,non-technical sense. For example, a “service” in the specialized sensemay correspond to, among others, video broadcast, audio-only broadcast,pay-per-view, or video-on-demand. The perceivable content provided onsuch a “service” may be live, pre-recorded, delimited in time,undelimited in time, or of other descriptions. In some cases, a“service” in the specialized sense may correspond to what a subscriberwould perceive as a “channel” in traditional broadcast television.

As used herein, the term “service group” refers to either a group ofservice users (e.g. subscribers), or the resources shared by them in theform of for example entire cable RF only the RF channels used to receivethe service or otherwise treated as a single logical unit by the networkfor resource assignment.

As used herein, the term “wireless” means any wireless signal, data,communication, or other interface including without limitation Wi-Fi,Bluetooth, 3G (3GPP/3GPP2), HSDPA/HSUPA, TDMA, CDMA (e.g., IS-95A,WCDMA, etc.), FHSS, DSSS, GSM, PAN/802.15, WiMAX (802.16), 802.20,narrowband/FDMA, OFDM, PCS/DCS, LTE/LTE-A, analog cellular, CDPD,satellite systems, millimeter wave or microwave systems, acoustic, andinfrared (i.e., IrDA).

Overview

The present disclosure provides methods and apparatus for efficientlydelivering electronic program guide (EPG) data to consumer devices. Theprovided methods and apparatus address the prior art deficienciesassociated with certain types of client devices having limitedprocessing power, as well as limited network bandwidth available fordelivering EPG data and updates. The disclosed methods andimplementations thereof thus reduce resource usage while providing arich user experience.

In one aspect of the present disclosure, the EPG data is pre-renderedprior to delivery to a client device. For example, a gateway apparatuswithin a user's premises and in communication with the client device(such as via a home network) may receive EPG data and pre-render theguide on behalf of the client device. The gateway apparatus serves as aproxy between the client device and the network, and renders thereceived guide data before delivering it in a format that requireslittle or no processing at the client-side. The foregoing mechanismsfurther decrease an amount of network bandwidth required for renderingthe EPG in that only one device within a premises (the gateway) willreceive the guide data, rather than all of the clients individuallyrequesting and receiving the EPG data.

The pre-rendering which occurs at the gateway may, in one exemplaryembodiment comprise generation of a simple view representing variousones of the EPG screens. The so-called simple view may comprise one of:a video segment (e.g., MP4, MPEG), a still image (e.g., PNG, PG, TIFF),and/or a pointer (e.g., simple HTML, and other immediately renderableformats).

To achieve the efficiency sought by the present disclosure, a completeset of all available guide data is received by the gateway from anetwork server, reducing or removing the need to continually requestviews from the network either by the gateway or each of the individualclient devices which will ultimately have access to the EPG. In anexemplary embodiment, the gateway may request additional data or updatesif the guide data is insufficient (due to, e.g., a new user input orpassage of time). Delivery of simple views to the CPE may be performedall at once, so that the CPE receives every possible simple view it mayrequire. In another exemplary embodiment, delivery may be donepredictively. For example, the gateway may provide only the simple viewthat is in an appropriate format for a given device to that deviceand/or based on user inputs and interaction with the previous screen. Inaddition, the gateway may prioritize which next screens to generatebased on a user's actions (e.g., moving a cursor to a dialog option) oran EPG screen (previously generated by the gateway) having multiplepossible selections. Such predictions allow a fast, smooth, and richuser experience. Certain predictive implementations may further minimizebandwidth usage.

Detailed Description of Exemplary Embodiments

Exemplary embodiments of the apparatus and methods of the presentdisclosure are now described in detail. While these exemplaryembodiments are described in the context of the aforementioned hybridfiber/coax (HFC) cable system architecture having an multiple systemsoperator (MSO), digital networking capability, IP delivery capability,and plurality of client devices or CPEs, the general principles andadvantages of the disclosure may be extended to other types of networksand architectures, whether broadband, narrowband, wired or wireless, orotherwise, the following therefore being merely exemplary in nature.

Also, while certain aspects are described primarily in the context ofthe well-known IP or Internet Protocol (described in, inter alia, RFC791 and 2460) and associated transport control protocol (TCP), it willbe appreciated that the present disclosure may utilize other types ofpacketization and transport protocols to implement the describedfunctionality

It will also be appreciated that while described generally in thecontext of a consumer (i.e., home) end user domain, the presentdisclosure may be readily adapted to other types of environments (e.g.,commercial/enterprise, government/military, etc.) as well. A myriad ofother applications is possible.

Other features and advantages of the present disclosure will immediatelybe recognized by persons of ordinary skill in the art with reference tothe attached drawings and detailed description of exemplary embodimentsas given below.

Network—

FIG. 1 illustrates an exemplary distribution network configuration withwhich the apparatus and methods of the present disclosure may be used.The various components of the network 100 include (i) one or more dataand application origination points 102; (ii) one or more content sources103, (iii) one or more application distribution servers 104; (iv) one ormore VOD servers 105, and (v) customer premises equipment (CPE) 106. Thedistribution server(s) 104, VOD servers 105 and CPE(s) 106 are connectedvia a bearer (e.g., HFC) network 101. A simple architecture comprisingone of each of the aforementioned components 102, 104, 105, 106 is shownin FIG. 1 for simplicity, although it will be recognized that comparablearchitectures with multiple origination points, distribution servers,VOD servers, and/or CPE devices (as well as different networktopologies) may be utilized consistent with the disclosure. For example,the headend architecture of FIG. 1a (described in greater detail below)may be used.

The data/application origination point 102 comprises any medium thatallows data and/or applications (such as a VOD-based or “Watch TV”application) to be transferred to a distribution server 104. This mayinclude for example a third party data source, application vendorwebsite, CD-ROM, external network interface, mass storage device (e.g.,RAID system), etc. Such transference may be automatic, initiated uponthe occurrence of one or more specified events (such as the receipt of arequest packet or ACK), performed manually, or accomplished in anynumber of other modes readily recognized by those of ordinary skill.

The application distribution server 104 comprises a computer systemwhere such applications enter the network system. Distribution serversare well known in the networking arts, and accordingly not describedfurther herein.

The VOD server 105 comprises a computer system where on-demand contentis received from one or more of the aforementioned data sources 102 andenter the network system. These servers may generate the contentlocally, or alternatively act as a gateway or intermediary from adistant source.

The CPE 106 includes any equipment in the “customers' premises” (orother locations, whether local or remote to the distribution server 104)that may be accessed by a distribution server 104.

Referring now to FIG. 1a , one exemplary embodiment of a headendarchitecture useful with the present disclosure is described. As shownin FIG. 1a , the headend architecture 150 comprises typical headendcomponents and services including billing module 152, subscribermanagement system (SMS) and CPE configuration management module 154,cable-modem termination system (CMTS) and OOB system 156, as well asLAN(s) 158, 160 placing the various components in data communicationwith one another. It will be appreciated that while a bar or bus LANtopology is illustrated, any number of other arrangements as previouslyreferenced (e.g., ring, star, etc.) may be used consistent with thedisclosure. It will also be appreciated that the headend configurationdepicted in FIG. 1a is high-level, conceptual architecture and that eachMSO may have multiple headends deployed using custom architectures.

The exemplary architecture 150 of FIG. 1a further includes amultiplexer-encrypter-modulator (MEM) 162 coupled to the HFC network 101adapted to process or condition content for transmission over thenetwork. The distribution servers 164 are coupled to the LAN 160, whichprovides access to the MEM 162 and network 101 via one or more fileservers 170. The VoD servers 105 are coupled to the LAN 160 as well,although other architectures may be employed (such as for example wherethe VoD servers are associated with a core switching device such as an802.3z Gigabit Ethernet device). As previously described, information iscarried across multiple channels. Thus, the headend must be adapted toacquire the information for the carried channels from various sources.Typically, the channels being delivered from the headend 150 to the CPE106 (“downstream”) are multiplexed together in the headend as previouslydescribed, and sent to neighborhood hubs (FIG. 1b ) via a variety ofinterposed network components.

It will also be recognized, however, that the multiplexing operation(s)need not necessarily occur at the headend 150 (e.g., in theaforementioned MEM 162). For example, in one variant, at least a portionof the multiplexing is conducted at a BSA switching node or hub. As yetanother alternative, a multi-location or multi-stage approach may beused, such as that described in co-owned U.S. Pat. No. 7,602,820,entitled “APPARATUS AND METHODS FOR MULTI-STAGE MULTIPLEXING IN ANETWORK” incorporated herein by reference in its entirety, whichdiscloses, inter alia, improved multiplexing apparatus and methods thatallow such systems to dynamically compensate for content (e.g.,advertisements, promotions, or other programs) that is inserted at adownstream network node such as a local hub, as well as “feed back” and“feed forward” mechanisms for transferring information betweenmultiplexing stages.

Content (e.g., audio, video, data, files, etc.) is provided in eachdownstream (in-band) channel associated with the relevant service group.To communicate with the headend or intermediary node (e.g., hub server),the CPE 106 may use the out-of-band (OOB) or DOCSIS channels andassociated protocols. The OCAP 1.0, 2.0, 3.0 (and subsequent)specification provides for exemplary networking protocols bothdownstream and upstream, although the disclosure is in no way limited tothese approaches.

It will also be recognized that the multiple servers (broadcast, VoD, orotherwise) may be used, and disposed at two or more different locationsif desired, such as being part of different server “farms”. Thesemultiple servers may be used to feed one service group, or alternativelydifferent service groups. In a simple architecture, a single server isused to feed one or more service groups. In another variant, multipleservers located at the same location are used to feed one or moreservice groups. In yet another variant, multiple servers disposed atdifferent location are used to feed one or more service groups.

Local Intermediary Service Nodes—

As shown in FIG. 1b , the network 101 of FIG. 1 and 1 a comprises afiber/coax arrangement wherein the output of the MEM 162 of FIG. 1a istransferred to the optical domain (such as via an optical transceiver177 at the headend or further downstream). The optical domain signalsare then distributed to a fiber node 178, which further distributes thesignals over a distribution network 180 to a plurality of localservicing nodes 182. This provides an effective 1:N expansion of thenetwork at the local service end.

In addition to on-demand and broadcast content (e.g., videoprogramming), the system of FIGS. 1a and 1b (and 1 c discussed below)also deliver Internet data services using the Internet protocol (IP),although other protocols and transport mechanisms of the type well knownin the digital communication art may be substituted. One exemplarydelivery paradigm comprises delivering MPEG-based video content, withthe video transported to user PCs (or IP-based STBs) over theaforementioned DOCSIS channels comprising MPEG (or other video codecsuch as H.264 or AVC) over IP over MPEG. That is, the higher layer MPEG-or other encoded content is encapsulated using an IP protocol, whichthen utilizes an MPEG packetization of the type well known in the artfor delivery over the RF channels, such as via a multiplexed transportstream (MPTS). In this fashion, a parallel delivery mode to the normalbroadcast delivery exists; i.e., delivery of video content both overtraditional downstream QAMs to the tuner of the user's STB or otherreceiver device for viewing on the television, and also as packetized IPdata over the DOCSIS QAMs to the user's PC or other IP-enabled devicevia the user's cable modem. Delivery in such packetized modes may beunicast, multicast, or broadcast. Delivery of the IP-encapsulated datamay also occur over the non-DOCSIS QAMs, such as described below withrespect to FIG. 1 c.

The CPE 106 are each configured to monitor the particular assigned RFchannel (such as via a port or socket ID/address, or other suchmechanism) for IP packets intended for the subscriber premises/addressthat they serve.

“Packetized” Networks—

While the foregoing network architectures described herein may (and infact do) carry packetized content (e.g., IP over MPEG for high-speeddata or Internet TV, MPEG2 packet content over QAM for MPTS, etc.), theyare often not optimized for such delivery. Hence, in accordance withanother embodiment of the present disclosure, a “packet optimized”delivery network is used for carriage of the packet content (e.g., IPTVcontent). FIG. 1c illustrates one exemplary implementation of such anetwork, in the context of a 3GPP IMS (IP Multimedia Subsystem) networkwith common control plane and service delivery platform (SDP), asdescribed in co-owned, co-pending U.S. patent application Ser. No.12/764,746, filed on Apr. 21, 2010 and entitled “METHODS AND APPARATUSFOR PACKETIZED CONTENT DELIVERY OVER A CONTENT DELIVERY NETWORK,published as U.S. Patent Application Publication No. 2011-0103374 on May5, 2011 and incorporated herein by reference in its entirety. Such anetwork provides significant enhancements in terms of, inter alia,common control of different services, implementation and management ofcontent delivery sessions according to unicast or multicast models,etc.; however, it is appreciated that the various features of thepresent disclosure are in no way limited to any of the foregoingarchitectures.

Guide Data Delivery—

In the field of data and content delivery, there are ways to interpretand render EPG applications by implementing technologies such as HTML5and JavaScript. Currently, content vendors implement partial renderingof HTML pages in the cloud, i.e., shared computing resources fromoutside the client device. Other providers use cloud-based rendering foronly their guide application at a basic level. However, cloud renderingof an EPG application is inefficient.

It would be desirable to implement the foregoing technology at theconsumer device. However, the challenge of doing so is the high unitcost of the “consumer premises equipment” (CPE) due to bandwidth usage,processing power, and memory footprint. Typically, when a scriptedapplication like an HTML5 navigator is used in a home with multipleset-top boxes (STBs) or other “consumer premises equipment,” asignificant amount of inefficient data, such as uncompressed text, isdelivered redundantly to each CPE. In addition, each CPE device musthave the processing power and memory to fully interpret and render thescripted application in its entirety. The cost of redundant scriptedapplications running in a home are high with respect to bandwidth andother resources used, and with respect to the cost of the CPEs(processing power and memory footprint).

For example, the partial “cloud” rendering of HTML pages does not relyon a home gateway, so the rendering cannot be done in the home. Thisrequires a remarkable consumption of access network bandwidth becauseall graphics are rendered in the cloud to a basic level, and all keypresses and line-draws are individualized and delivered to each CPE.This is a particular challenge and not an optimal solution for homeswith many CPEs or client devices using the same scripted application.

Nonetheless, these partial solutions still require significant burden onCPEs, including processing power and a remarkable consumption ofbandwidth. It would be desirable to maintain the quality and richuser-end experience while making the rendering of scripted technologiesmore efficient and specialized.

As described, a significant competitive challenge presently faced byoperators of content delivery networks relates to managing andconserving bandwidth. Therefore, there is a need for new techniques thatfacilitate reducing the cost of redundant scripted applications runningin a home or other locations receiving data to multiple CPEs. These newtechniques should reduce the amount of bandwidth used as well ashardware requirements such as processing and memory power and memorywhile integrating with existing network infrastructures. Variousembodiments of the methods and apparatus for providing efficientdelivery of guide data are discussed herein.

Exemplary Network Architectures—

Referring now to FIG. 2, an exemplary embodiment of a networkarchitecture 200 for efficiently providing guide data to a plurality ofsubscriber devices is illustrated. While described herein in the contextof a hybridized (i.e., fiber and wireline conductor such as coaxialcable) extant network topology such as that of FIGS. 1-1 c discussedabove), the present disclosure is in no way so limited, and in fact maybe utilized within various network or topology types.

As shown, the network 200 generally comprises a gateway apparatus 202 incommunication with a plurality of consumer devices (or CPE) 106. Thegateway apparatus 202 in the illustrated embodiment, communicates with aplurality of entities at a managed network 101 to provide content and/ordata to the consumer devices 106.

In one variant, the present disclosure enables the gateway 202 to act asa proxy for the CPE 106 with respect to only the guide data. The CPE 106are, in this embodiment, configured to request and receive contentdirectly from the network 101 without utilizing the gateway 202.However, it is appreciated that in another variant the gateway 202 mayadditionally act as a proxy for the CPE 106 with respect to delivery ofother content and/or data. For example, the gateway apparatus 202 may besimilar to that discussed in co-owned, co-pending U.S. patentapplication Ser. No. 13/888,210 filed on May 6, 2013, published as U.S.Patent Application Publication No. 2013/0318560 on Nov. 28, 2013 andentitled “PREMISES GATEWAY APPARATUS AND METHODS FOR USE IN ACONTENT-BASED NETWORK”, which is incorporated herein by reference in itsentirety. As discussed therein, a gateway apparatus (such as the gatewayapparatus 202) is provided for unifying at least portions of thefunctionality of a set-top box (STB) or similar customer premisesdevice, or a digital video recorder (DVR), with those of another devicesuch as a cable modem. In one exemplary variant, the out-of-bandsignaling and communication functions typically necessary on STBs andDVRs are obviated in favor of the premises services gateway (PSG)device, which acts as a unified proxy for all inbound (downstream) andoutbound (upstream) communications with the network. This approach isparticularly useful to help reduce a cable provider's capitalexpenditures in manufacturing customer premises equipment (CPE), sincethe “proxied” DVR and STB no longer require an OOB tuner, and hencetheir cost is reduced and simplicity, space efficiency, and evenreliability increased.

The exemplary gateway 202 may also be advantageously utilized toconsolidate in-band tuner resources as well, thereby further reducingcapital costs associated with subscriber premises installations. In onevariant, communication between the various entities (e.g., DVR and STBand PSG OOB proxy) is accomplished using IP-based communications. Inanother variant, client devices that support a cable RF tuner and an IPchannel distributed over coaxial cable to the gateway are disclosed.These clients may only implement the IP channel, and therefore receiveall video or data information over the IP network only. This reduces thecost of the client devices by removing the tuners and the cable modemsfrom each device.

In other embodiments, one or both of the foregoing DVR and STB arefurther physically integrated within the premises gateway 202, therebyallowing for a fully unified platform. This unified platform may use acommon form factor (i.e., one box), a common coaxial interface to theparent network, common AC power supply, end even common operatingsystem, storage devices, and middleware. Common control and userinterface environments may also be utilized, such as where a single“universal” remote is provided to afford control of all STB, tuning andDVR functions. The gateway 202 is also configured to interface with anynumber of other devices which may be present in the customer's premises,such as e.g., MoCA-based LANs, Ethernet LANs, WiFi LANs, PANs, or evenpersonal media devices (PMDs). The gateway 202 may also act as a router,provide network address translation (NAT) functions, and even act as aDHCP server if so configured. In another aspect, the exemplary gateway202 embodiments disclosed herein further facilitate the aim of easiermovement of content within a “trusted domain” or authorized servicedomain (ASD) by inter alia unifying multiple devices and functionswithin a single device.

In yet another embodiment, the gateway 202 further communicates with anon-managed network and thereby enables content and/or data to beobtained from networks other than the managed network (for examplecontent and/or data may be obtained via communication with 3^(rd) partyentities via the Internet). For example, the gateway apparatus 202 maybe similar to that discussed in co-owned, co-pending U.S. patentapplication Ser. No. 12/582,619 filed on Oct. 20, 2009, entitled“GATEWAY APPARATUS AND METHODS FOR DITGITAL CONTENT DELIVERY IN ANETWORK”, and published as U.S. Patent Application Publication No.2011/0093900 on Apr. 21, 2011, which is incorporated herein by referencein its entirety. As discussed therein, a gateway device (such as thegateway apparatus 202) is disposed at the headend of the network and isconfigured to request and receive internet content from one or more hostservers via the Internet. The internet content is then processed anddelivered to one or more client devices (such as the CPE 106).

Processing of internet content at the gateway 202 may includede-encapsulating the received internet content from a first media filecontainer format and subsequently re-encapsulating the internet contentto a second media file container format which is compatible with one ormore receiving devices. For example, content which is delivered from ahost server may be encapsulated in e.g., MP4, if the receiving clientdevice(s) are not capable of reading the MP4 files, the gateway devicemay re-encapsulate to e.g., MPEG-2 or other format that the receivingdevice is capable of reading. The gateway device may process receivedcontent automatically into various alternative encapsulation formats or,may encapsulate as needed to the format of the specific requestingdevice. The processed content may be stored for future use fortransmission to other client devices requesting the same content in theparticular new format.

Multiple alternative delivery paradigms are given for the delivery ofinternet content from the gateway device to the client devices. In oneembodiment, internet content is delivered according to traditionalbroadcast mechanisms (e.g., linear delivery via downstream in-band QAM).According to this mechanism, the gateway device first establishes a setof rules for requesting certain internet content. The content is thenpre-processed, and a broadcast schedule is created. Users may then viewthe internet content by tuning to the appropriate program channel(associated with one or more particular QAMs) at the time designated inthe broadcast schedule.

In another embodiment, internet content is delivered using VOD deliverymechanisms. According to this mechanism, a VOD session is establishedbetween the user's CPE 106 and an internet content portal associatedwith the gateway device. At the portal, the user browses and selectsinternet content for viewing. The gateway device is then able to requestselected internet content from a host server associated with thecontent, process the content as needed, and stream the (processed)content, via the pre-established session, to the user's CPE. In onevariant, the same session is utilized for subsequent internet contentrequests.

Referring again to FIG. 2, although illustrated as a single gateway 202for each user premises, it is appreciated that more than one gateway 202may be provided. For example, a single gateway 202 may be configured toreceive guide data from the network, render the guide data into one ormore of the various simple views discussed herein, and transmit thesimple view to each CPE 106 in the premises. Alternatively, one or moreof these tasks may be performed at a separate gateway device 202. In afurther variant, the gateway 202 may be located at a cloud or network101 location. In this manner a single gateway apparatus 202 is able torender guide data for a plurality of CPE 106 such as an entire servicegroup.

The gateway device 202 of FIG. 2 is in communication with a networkauthentication entity 204, a content server 206 and a data server 208via the managed network 101. The authentication entity 204 is configuredto authenticate the gateway 202 and/or subscriber registered thereto. Ina further embodiment, the authentication entity 204 is furtherconfigured to authenticate each of the devices (and/or a user thereof)which request access to the content and/or data provided from thenetwork 101. This may occur via a direct communication between the CPE106 and the authentication entity 204; alternatively, the gateway 202may act as a proxy for the authentication of the CPE 106 and/or a userthereof.

In one embodiment, apparatus and methods for authorization and/orauthentication may be of the type discussed in co-owned U.S. patentapplication Ser. No. 12/536,724 filed Aug. 6, 2009 and entitled “SYSTEMAND METHOD FOR MANAGING ENTITLEMENTS TO DATA OVER A NETWORK”, now issuedas U.S. Pat. No. 8,341,242 on Dec. 25, 2012, which is incorporatedherein by reference in its entirety. If the requesting device/user isnot authorized and/or authenticated, content/data cannot be providedthereto.

“Authentication” as used herein refers generally and without limitationto a determination that a device or user associated with the device(e.g., the CPE 106 and/or gateway 202) is among the devices which mayreceive content/data, and/or that a user of the requesting device is asubscriber to the network 101 or other entitled user. This may beaccomplished by requiring the user to log into the network (such as bypassword and/or user identification, challenge question, etc.) or bycomparing some other unique identifier (such as MAC ID, digitalsignature, SIM ID) to a list of authenticated device identifiers at aheadend entity (such as the aforementioned transfer manager 206). Othermechanisms may be used as well, and multiple such mechanisms may be usedin parallel or sequence as desired.

“Authorization” as used herein refers generally and without limitationto the determination that the requested content/data is within the setor plurality of content/data the user (e.g., subscriber) or device mayreceive, and/or the proposed use of the content/data is within theallowed use set for that subscriber. For example, authorization may beused to refer to whether the requested content/data is within thesubscription plan (e.g., level or tier) for the requesting user. Othersecurity or rights-related checks may be performed as well.

The content server 206 in one variant is similar to that discussed abovewith respect to the content sources 103 of FIG. 1. The content server206 stores and distributes content (such as content programming, ormedia content) via the network 101 for display at a consumer device(e.g., CPE 106). The content server 206 additionally provides metadataregarding the content that is to be delivered to the data server 208.

The data server 208 is configured to store and distribute informationregarding the content that is to be delivered via the network 101. Thedata server 208 for example provides metadata from all content set to bedelivered or broadcast which is needed to derive or generate anelectronic program guide (EPG). In one further variant, the data server208 provides data which is specific to a particular gateway 202. Inother words, what is sent is only that which is needed by the particulargateway 202 to render the guide having e.g., a channel lineup which isspecific for a user of a particular CPE 106, targeted to a geographicarea associated with the gateway 202 and/or devices 106, specific to asubscriber type, etc.

As indicated in FIG. 2, a full or complete data set is provided from thedata server 208 to the gateway apparatus 202. The full data set may beprovided periodically, with minor updates being additionally provided ata smaller interval. The data may be pushed from the data server 208 tothe gateway 202; or alternatively, the gateway 202 may actively pull theinformation therefrom. The full or complete data set comprises all ofthe information that is required by the gateway 202 to render the EPG.For example, metadata regarding the content, scheduling information, andgraphic user interface (GUI) information needed from the headend areprovided to the gateway 202.

Guide data may include any information contained in the end-userpresentation. Typical examples include programming information such asdates, times, channels, program names, descriptions, user ratings, actorlistings, thumbnails, pricing of restricted content. Advertisements suchas additional promotions or service plans being offered by vendor,relevant third-party ads, TV show or movie preview images and videos maybe included with the guide data. Certificates and other authenticationdata as mentioned previously may also be transmitted. Applications andscripts (e.g., Java applets, JavaScript code, HTML5 code) necessary toorganize or display the above information may also be included.

The gateway 202 of FIG. 2 utilizes the complete data set to render anEPG on behalf of the CPE 106. As noted above, the present disclosureutilizes the gateway 202 (including e.g., the content and dataserver(s), headend, and other network devices) to deliver rendered guidedata in a simple view to CPE 106. This feature is intended to replaceprior art systems wherein, for example, logic implemented in JavaScriptsoftware is executed at least partially on the CPE to calculate andrender guide information that the end user sees. In other words, when aguide is showing on a CPE (prior to the utilization of the gateway 202as discussed herein), the CPE is executing JavaScript to process andcause display of the appropriate information and graphics. However,according to the present disclosure, rather than this occurring at theCPE 106 rendering and processing occur at the gateway 202.

Aligning with the aim of reducing processing and bandwidth, thefrequency with which guide data is received at the gateway 202,transmitted to the CPE 106, and updated at the gateway 202 (from thenetwork) may vary depending on availability of processing and bandwidthresources within the network. In addition or as an alternative, guidedata may be updated on a regular schedule, e.g., hourly, daily, weekly,or based on an event, e.g., user request (limited or unlimited), gateway202 or CPE 106 power-on, vendor decision, conditional events.

As discussed elsewhere herein, various mechanisms may be utilized toprovide the simple views distributed to the CPE 106 from the gateway202. Each of the mechanisms for providing simple views utilizes fewernetwork and CPE 106 resources thereby addressing the salientdeficiencies of prior art methods. The simple view which is provided tothe CPE 106 may include a picture, a simple pointer, or a video of theguide data. Each of the foregoing having been processed at the gatewayso that they may be merely presented in a fixed format at the CPE 106(and/or display device associated therewith). When a user at the CPE 106enters commands to navigate the guide, the gateway 202 renders theappropriate EPG changes and provides updated simple views to the CPE106.

As used herein, the simple view utilizing a video stream refers to thedelivery of a fixed video (e.g., MPEG, MP4) that does not requirefurther rendering of JavaScript or HTML5 at the CPE 106. Under thisapproach, a plurality of video streams are generated at the gateway 202and delivered to the CPE 106. The user of the CPE 106 (or display deviceassociated therewith) views and interacts with the guide as if the userwere controlling the dynamic changes happening on the screen; however,the CPE 106 (and/or display device associated therewith) is merelydisplaying a video representative of the interaction. Using video allowsanimated elements on screen, providing the user with a rich experiencethat most have seen before. Having animated elements also gives theappearance that the commands inputted by the user are making localchanges, e.g., moving a selection from one box to another, rather thanchanges to the entire screen. In the above example, a new navigationcommand triggers a request to the gateway 202 to produce or deliver anew video stream with an updated box selection. Hence, using thisapproach, rendering of dynamic elements is no longer necessary by theCPE 106.

As used herein, the simple view utilizing a still picture (e.g., PNG,JPG, TIFF) refers to the delivery of one or more pictures representativeof the EPG and interaction therewith. In much the same manner as thevideo stream simple view, a plurality of still pictures are generated atthe gateway 202 and delivered to the CPE 106 for display thereat (or ata display device in communication therewith). The user of the CPE 106(or display device associated therewith) views and interacts with theguide as if the user were controlling the dynamic changes happening onthe screen; however, in this embodiment the CPE 106 (and/or displaydevice associated therewith) is merely displaying one or more picturesrepresentative of the interaction. Each input command by the usertriggers the gateway 202 to provide an updated picture (view of thescreen). This approach is ideal for low-end CPEs that cannot handlesmoothly processing pre-rendered video streams or executing code(discussed below).

As used herein, the simple view utilizing a simple pointer (such as HTMLor other immediately renderable formats) refers to the delivery of a setof text that renders a webpage representative of the EPG and interactiontherewith. Examples of the other renderable formats include but are notlimited to <canvas> tag commands, SVG commands, DirectFB commands, orWebGL commands. Some of these formats may require more complexrendering, but their availability makes this approach more flexible thanthe other two. In one specific embodiment, HTML5 supplemented byJavaScript or other languages such as CSS3 is used to create dynamiccontent at the CPE 106 (or display device). In much the same manner asthe video stream simple view, a plurality of pointers are generated atthe gateway 202 and delivered to the CPE 106 for display thereat (or ata display device in communication therewith). The user of the CPE 106(or display device associated therewith) views and interacts with theguide as if the user were controlling the dynamic changes happening onthe screen; however, in this embodiment the CPE 106 (and/or displaydevice associated therewith) is merely displaying one or more webpagesrepresentative of the interaction. Each input command by the usertriggers the gateway 202 to provide an updated pointer.

The gateway 202 determines which of the foregoing approaches to utilizefor providing the simple view to the CPE 106 based on e.g., CPEcapabilities (processing power, memory, accepted bandwidth load),gateway capabilities (processing power, memory, accepted bandwidthload), cloud resources, user preference, data collected from vendor oruser experience, and bandwidth availability (time of day, user demand,etc.). Alternatively, a user at the gateway 202 and/or CPE 106 maymanually select a simple view technique (e.g., still picture, video,pointers, or other).

As noted above, a video stream simple view presentation is moreresource-intensive than a still picture simple view presentation. Hence,the gateway 202 may elect one or the other based on what is known aboutthe receiving device (e.g., CPE 106 and/or display apparatus). Forexample, to reduce client-side hardware costs, an end user may opt touse a low-end CPE 106 that lacks modern processing and memory power. Inthis case, a complex code combined with a video stream would beunfavorable, therefore the still picture variant is selected.

The aforementioned exemplary architecture of FIG. 2 is used to increasethe efficiency of delivering guide data to client devices 106. Thisconfiguration works on any technology deployment that involves a gatewayapparatus and one or more client devices that rely on that gateway forcontent or connectivity. However, it would be recognized by those ofordinary skill given this disclosure that other approaches andarchitectures may be substituted with equal success.

FIGS. 3-3 c illustrate exemplary methods for use with the apparatus andsystems disclosed in the network 200 of FIG. 2.

Example Operation—

FIG. 3 illustrates a generalized method for, efficiently providing guidedata in accordance with the present disclosure.

As shown, per step 302, authentication is performed. As discussed above,the authentication may comprise an authentication of the gateway 202(and/or a user thereof) to a network authentication entity 204, and/orauthentication of the CPE 106 (and/or a user there) to the networkauthentication entity 204. The CPE 106 or user thereof may authenticateitself to the network 101 via the gateway 202 in one embodiment. In afurther variant, the CPE 106 and/or a user thereof may authenticateitself to the gateway 202 to establish a so-called “trusted network”.

Authentication and/or authorization may occur in a myriad of ways.Examples include but are not limited to peer-to-peer authenticationbetween devices (e.g., between CPE and tablet or other user-end device,CPE and gateway, gateway and server, server and other cloud devices),user authentication (e.g., form-based username and password entry, otherforms of requiring credentials), authorization authentication (e.g.,billing account maintained by content vendor, address, time of day,restricted content based on geographic area and/or service plan), entityauthentication (e.g., digital certificate, MAC address, sessioncookies), infrastructure authentication (e.g., by IP address), chainedauthentication, and HTTP. Multi-factor authentication using more thanone authentication procedure may also be used. Examples of secureauthentication technologies used include but are not limited to SecuredSockets Layer (SSL), Secure Shell (SSH, OpenSSH), Transport LayerSecurity (TLS), and OAuth (2.0 or otherwise). Any third-party serveroutside of the household would use a standardized API.

Additionally, the apparatus and methods for authorization and/orauthentication may be of the type discussed in previously referencedco-owned U.S. patent application Ser. No. 12/536,724 filed Aug. 6, 2009and entitled “SYSTEM AND METHOD FOR MANAGING ENTITLEMENTS TO DATA OVER ANETWORK”, now issued as U.S. Pat. No. 8,341,242 on Dec. 25, 2012, whichis incorporated herein by reference in its entirety.

Once the devices are authenticated/authorized, per step 304 a completeguide data set is received and stored at the gateway 202. As discussedabove, the complete data set comprises all the data which is needed bythe gateway 202 to render an electronic program guide (EPG). Forexample, metadata including actors, broadcast times, channelidentifiers, program identifiers, etc. are provided. A complete data setmay be provided to the gateway 202 from a data server 208 periodicallyupon a push/pull from the gateway 202 or data server 208 as noted above.Communication between the guide data server 208 and the gateway 202 mayutilize in-band and/or out-of-band frequency of the existingcontent/data delivery network; such as via, inter cilia, QAM carousel,DSG carousel, multicast, or unicast.

As noted, the gateway is fed with a completed set of information,thereby reducing or removing a need for the gateway 202 to subsequentlyrequest individualized or narrow views of guide content from thenetwork. However, if it is later determined that the received guide datais insufficient, the gateway 202 may request and retrieve additionalguide data and/or updates to the guide data.

Per step 306, the gateway 202 generates one or more simple views of theEPG. As noted above, there are various simple views which may beutilized by the CPE 106. For example, the simple view may comprisestatic pictures, video clips, or pointers. The gateway 202 generatesthese views using information obtained from the complete guide data set.In the instance a still picture simple view is being generated, thegateway 202 uses the data to generate one or more picturesrepresentative of e.g., a first screen of the EPG. Similarly, when thevideo or pointers simple view is being generated, the gateway 202 usesthe data to generate one or more videos or pointers representative ofe.g., a first screen of the EPG.

In one embodiment, the gateway 202 is made aware of the capabilities ofall of the CPE 106 in communication therewith (such as during aregistration process) and based on this information the gateway 202 runsa computer program configured to determine which simple view(s) tocreate. For example, the gateway 202 may select a single simple viewwhich all the devices are capable of displaying, or may generate adifferent type of simple view for each of the registered devices.Alternatively, the gateway 202 may generate all of the simple viewalternatives and distribute them as needed. In another embodiment, theuser of the CPE 106 and/or gateway 202 may determine the one or moresimple views to be generated and distributed.

Next, per step 308, the generated simple views are provided to the CPE106 for display. The gateway 202 may be configured to provide only theview which is in an appropriate format for a given device to thatdevice. Alternatively, all of the views may be provided to each of thedevices in communication with the gateway 202. Actual display of thedata provided as a simple view occurs at a display apparatus incommunication with the CPE 106.

After a period of time, a user at the CPE 106 interacts with the programguide and enters a command. The command is received at the gateway 202at step 310 via e.g., any number of communication mechanisms (such ase.g., Bluetooth, wireless, MoCA, wired connections, etc.). The userinput commands may be entered via a separate controller device (e.g.,remote control) or physical button inputs, e.g., navigation arrows. Inone variant, the user commands comprise very basic or low-levelcommands; examples include navigation buttons, browsing menus, andselecting program entries.

In response to the commands, per step 312, the gateway 202 provides thenecessary updated simple views to the CPE 106.

It is important to note that according to the embodiment of FIG. 3, itis gateway 202, and not the CPE 106, that bears the computation load ofinterpreting JavaScript (or similar supplement for HTML5) and executingresource intensive operations to produce a simple view of the guidedata. This shifts the processing, bandwidth, and memory resources awayfrom the client devices and to the gateway 202, reducing the costs ofthe client devices 106.

As discussed above, at steps 306 and 308, the gateway 202 may generateand provide only that information which is necessary for the CPE 106 todisplay the first EPG screen (i.e., a menu screen), then awaitadditional user commands. However, in another variant, the gateway 202may generate and pre-position all of the information necessary todisplay any next logical command which might be entered by the CPE forthe various simple views. In other words, the gateway 202 may run atleast one computer program configured to determine all of the possiblecommands which may be received at a given EPG screen. The gateway 202then uses this information to derive all of the next screens the userwould see based on those determined commands in the appropriate simpleviews. When the updated screen is delivered, the gatway 202 may run theprogram again to generate all possible next screens given the currentview, and so forth. The gateway 202 may either store the simple viewsfor all possible user commands for delivery per step 312, or may sendthem to the CPE 106 at the same time as the original simple view of thefirst screen is transmitted to the CPE 106. According to this secondmodel, the user commands are not transmitted to the gateway 202 butrather processed at the CPE 106 for a determination of which simple viewupdated screen to display.

The updated simple views may be predicted and provided to the CPE 106 inadvance of the user's actual input of a command. For example, moving aselection cursor or box to an “OK” or “Cancel” selection increases thelikelihood that the user will select that particular choice. In thatcase, a pre-rendered simple view containing what would show in thefollowing screen is identified and/or generated and delivered to the CPE106. This improves the user experience by reducing wait times,increasing smoothness, reducing choppiness of animation due to anyparticularly complex gateway-side calculations, etc. Predictions requireadditional processing and bandwidth capabilities at the gateway 202.

In some embodiments, the gateway 202 is further configured to rememberwhere the user left off the last time the guide was displayed. Uponreturning to the guide, the CPE 106 displays the same screen as before.This introduces a further level of seamlessness and the appearance thatthe user is controlling directly what is displayed in front of the userrather than being shown a pre-rendered graphic.

FIGS. 3a-3c discloses various methods for providing simple views to theclient. Each of the illustrated methods replace what would normally beJavaScript-supported HTML5 guides rendered and displayed by the CPE 106,with pre-rendered (i.e., rendered at the gateway 202) replacement video,simple HTML, or picture. These methods thereby reduce the redundantbandwidth used as well as client device costs since less processingpower and memory are needed.

According to the method 319 of FIG. 3a , a powerful client device 106containing a transcoder processes and causes display of a video streamthat contains the program guide. In this manner, an “animated” guide maybe provided; the animated guide is more aesthetically pleasing for theuser than the other simple views discussed herein. To accomplish thismethod, as shown, per step 320, a plurality of video streams aregenerated at the gateway 202 and provided to the CPE 106 for display(step 322).

As noted above, the video streams which are generated at step 320 maycomprise only those necessary for the display device associated to theclient device 106 to display an initial menu screen. Alternatively, thegateway 202 may additionally derive the all video streams which might benecessary based on all possible user commands. These are then stored atthe gateway 202 or provided to the CPE 106 in anticipation of a command.

Referring again to the method of FIG. 3a , per step 324 a command isreceived from a user interacting with the guide. In response to thecommand, per step 326, the gateway generates a new stream whichcorresponds to the updated view and provides the new stream to thedevice 106 (step 328). Alternatively, as noted above, the gateway 202may pre-generate all update streams which may be needed by a user wheninteracting with the guide (e.g., all those which are expected to beneeded based on a current view). These may be pre-positioned at the CPE106; in which case, the request (step 326) is not sent to the gateway202. Alternatively, the gateway 202 may simply store the pre-generatedstreams and provide them in response to the command at step 328.

FIG. 3b illustrates a method 329 for providing guide data as stillpictures for devices 106 which have less processing power and/or memorythan those discussed above with respect to FIG. 3a . This would resultin slightly higher in-home bandwidth usage than the simple HTML, but hasthe advantage of being capable of being used with much lower-end boxes.

As shown, per step 330, a plurality of images are generated at thegateway 202 and provided to the CPE 106 for display (step 332). As notedabove, the still images which are generated at step 330 may compriseonly those necessary for the display device associated to the clientdevice 106 to display an initial menu screen. Alternatively, the gateway202 may additionally derive the all images which might be necessarybased on all possible user commands. These are then stored at thegateway 202 or provided to the CPE 106 in anticipation of a command.

Next, at step 334 a command is received from a user interacting with theguide. In response to the command, per step 336, the gateway generates anew image which corresponds to the updated view and provides the newimage to the device 106 (step 338). Alternatively, as noted above, thegateway 202 may pre-generate all update images which may be needed by auser when interacting with the guide (e.g., all of the images whichmight be necessary given the current view). These may be pre-positionedat the CPE 106; in which case, the request (step 336) is not sent to thegateway 202. Alternatively, the gateway 202 may simply store thepre-generated images and provide them in response to the command at step328.

Under a third method 339, the guide data is rendered into pointers forsimple HTML. In the instance the gateways 202 and/or servers cannotgenerate a video stream, and/or the CPE 106 cannot transcode a videostream, the simple HTML is calculated after JavaScript operations arecomplete. This resultant pointer (e.g., HTML) is sent to a CPE andrendered without the overhead of the JavaScript interpretation. Examplesof other potentially formats that are immediately renderable by the CPE106 include <canvas> tag commands, SVG commands, DirectFB commands, orWebGL commands, which may be more complex than simple HTML.

Per step 340, a plurality of pointers are generated at the gateway 202and provided to the CPE 106 for display (step 342). The gateway 202 maygenerate only those pointers which are necessary for the display deviceassociated to the client device 106 to display an initial menu screen.Alternatively, the gateway 202 may derive the all pointers which mightbe necessary based on all possible user commands. These are then storedat the gateway 202 or provided to the CPE 106 in anticipation of acommand. Next, per step 344 a command is received from a userinteracting with the guide. In response to the command, per step 346,the gateway 202 generates a new pointer which corresponds to the updatedview (and/or identifies a pre-generated pointer) and provides the newpointer to the device 106 (step 348).

The foregoing methods of FIGS. 3-3 c utilize a gateway 202 apparatus anda client device 106, each of which will be discussed in detail below.

Exemplary Client Device—

Referring now to FIG. 4, an exemplary client device or CPE 106 isillustrated. As shown, the CPE 106 generally comprises a networkinterface 402, processor 404, a storage device 408, and a number ofbackend interfaces 406 for communication between the CPE 106 and one ormore external devices (such as other devices in the home network, adisplay apparatus, and/or a controller). In one variant, the CPE 106comprises an IP-enabled device. Additionally, as noted above in oneembodiment a single user premise may comprise more than one CPE 106 eachin communication with the same gateway 202. It will be appreciated thatwhile described somewhat generically herein, the individual clientdevices may both (i) be heterogeneous or homogeneous innature/capability; and (ii) be integrated into or make use of extantdevices/form factors such as smartphones, tablets, phablets, laptops,handhelds, gaming devices, wireless routers, etc.

The network interface 402 enables the CPE 106 to communicate to thenetwork 101. For example, the network interface 402 may comprise an RFtuner capable of receiving programming content from e.g., the contentserver 206. Additionally, data may be transmitted to the CPE 106 via thenetwork interface 402. In the event the gateway 202 functions as acontent delivery proxy for the CPE 106, however, the CPE 106 may notcomprise a network interface 402 but rather content is received via abackend interface 406 with the gateway 202.

In the illustrated embodiment, the processor 404 is configured toexecute at least a display processing application 410 and a commandrequest application 412.

The display processing application 410 comprises computer instructionswhich enable the CPE 106 to display the received simple view of theguide data (e.g., as still images, video segments, or pointers). Theprocessing application 410 is an optional application which may beomitted from the CPE 106 in the event display processing occurs at adisplay device other than the CPE 106 but in communication therewith.

The command request application 412 enables the CPE 106 to, in responseto receiving commands from a user, issue a request to the gateway 202for an updated view. The updated view may comprise updated still images,updated video streams, or updated pointers. As noted above, the gateway202 in response to the request, generates the updated views.Alternatively, as also described in greater detail above, the gateway202 may pre-generate all of the updated views which may be anticipatedto be needed based on the current view. In this instance, upon receivingthe CPE 106 command request, the gateway 202 simply identifies thenecessary updated (based on the issued request/command).

In a further embodiment, the CPE 106 rather than the gateway may storethe pre-generated views. According to this model, once these aregenerated at the gateway 202 they are simply passed to the CPE 106 forstorage thereat. Upon user request, the CPE 106 identifies theappropriate updated view. According to this embodiment, the commandrequest application 412 is optional.

Via the backend interfaces 406, the CPE 106 is connected to the gateway202, as well as any number of other external devices and/or homenetworked devices (e.g., other CPE 106, a remote controller, a displayapparatus, etc.). Exemplary interfaces useful with the CPE 106 includebut are not limited to coaxial cable (including Multimedia over Coax(MoCA)), Wi-Fi, infrared, USB, Ethernet, Bluetooth, etc.

The storage device 408 comprises a data storage entity configured tostore e.g., the guide data and any updates thereto. The storage device408 data and may comprise any one of a number of types of memory (e.g.,RAM, SRAM, DRAM, magnetic hard-disk drives (HDD), solid-state drives(SSD), hybrid SSD drives having components associated with HDD and SSD,etc.).

Exemplary Gateway Device—

Referring now to FIG. 5, an exemplary gateway apparatus 202 is shown.The gateway 202 generally includes a network interface 502, a processor504, a storage apparatus 506, and a number of backend interfaces 508 forcommunication to e.g., the CPE 106. In one variant, as noted above, asingle user premise may comprise more than one gateway 202 incommunication with one or more CPE 106. As noted above, the presentdisclosure enables the gateway 202 to act as a proxy for the CPE 106with respect to only the guide data. The CPE 106 are, in thisembodiment, configured to request and receive content directly from thenetwork 101 without utilizing the gateway 202.

It is appreciated that in another variant the gateway 202 mayadditionally act as a proxy for the CPE 106 with respect to delivery ofother content and/or data as discussed in previously referencedco-owned, co-pending U.S. patent application Ser. No. 13/888,210(published as U.S. Patent Application Publication No. 2013/0318560).

In yet another embodiment, the gateway 202 further communicates with anon-managed network and thereby enables content and/or data to beobtained from networks other than the managed network (for examplecontent and/or data may be obtained via communication with 3^(rd) partyentities via the Internet), as discussed in previously referencedco-owned, co-pending U.S. patent application Ser. No. 12/582,619(published as U.S. Patent Application Publication No. 2011/0093900).

Referring again to FIG. 5, the network interface 502 enables the gateway202 to communicate to the network 101. For example, the networkinterface 502 may comprise an RF tuner capable of receiving programmingcontent from e.g., the content server 206. Additionally, data may betransmitted to the gateway 202 via the network interface 402 includingdata from the data server 208. In the event the gateway 202 functions asa content delivery proxy for the CPE 106, content and/or data receivedfrom the content server 204 is then delivered to the CPE 106.

In the illustrated embodiment, the processor 504 is configured toexecute at least a simple view generation application 510, a commandresponse application 512, and an update processing application 514.

The simple view generation application 510 comprises a plurality ofinstructions which when executed enable the guide to be rendered (onbehalf of the CPE 106). As discussed in detail elsewhere herein, thegateway 202 may render the guide in any one of a number of simpleformats, for example, still pictures, video streams, or pointers. In oneembodiment, the simple view generation application 510 uses datareceived from the data server 208 to generate one or more simple viewsof the initial guide screens. In addition, the simple view generationapplication 510 may be utilized to pre-generate all of the simple viewscreens that may be necessary given the current view.

Additionally, the simple view generation application 510 may beconfigured to generate all of the simple view types discussed herein.Alternatively, it may determine which one or ones of the views arenecessary based on the configuration of the CPE 106 in communicationtherewith. Given the three exemplary approaches of rendering simpleviews discussed herein, the least complex approach is to send stillpictures to be rendered by the CPE 106. A more capable CPE 106, on theother hand, may be able to display simple views rendered as videostreams and/or pointers.

The command response application 512 comprises a computer applicationconfigured to enable the gateway 202 to in response to receiving varioususer commands (via communication with the CPE 106) generate updatedsimple views. Specifically, information contained in the request (andgenerated from the initial user command) is used to effect the currentview, thereby necessitating an updated view. In another variant,information from the request is used to identify one of a plurality ofpreviously generated updated views.

The update processing application 514 comprises a computer applicationconfigured to enable the gateway 202 to generate a plurality of simpleview updates to an electronic program guide. That is, the updateprocessing application 514 utilizes information received in a request(as processed from an initial user command) to determine changes thatare needed to the current screen. The update processing application 514in conjunction with the simple view generation application 510 thengenerates updated views. The update processing 514 may occur a priori(e.g., before a CPE 106 request is received) or on the fly (e.g.,generated only as needed).

In a further embodiment, the gateway 202 may be configured to establishand authenticate devices within a trusted domain. To this end, anauthentication application (not shown) authenticates CPE 106 such as viathe authentication server 204 or other headend entity.

Via the backend interfaces 506, the gateway 202 communicates to the CPE106, as well as any number of other external devices and/or homenetworked devices (e.g., other gateway 202, etc.). Exemplary interfacesuseful with the gateway 202 include but are not limited to coaxial cable(including Multimedia over Coax (MoCA)), Wi-Fi, infrared, USB, Ethernet,Bluetooth, etc.

The storage device 508 comprises a data storage entity configured tostore e.g., the guide data and any updates thereto. The storage device508 data and may comprise any one of a number of types of memory (e.g.,RAM, SRAM, DRAM, magnetic hard-disk drives (HDD), solid-state drives(SSD), hybrid SSD drives having components associated with HDD and SSD,etc.).

It will be recognized that while certain aspects of the disclosure aredescribed in terms of a specific sequence of steps of a method, thesedescriptions are only illustrative of the broader methods of thedisclosure, and may be modified as required by the particularapplication. Certain steps may be rendered unnecessary or optional undercertain circumstances. Additionally, certain steps or functionality maybe added to the disclosed embodiments, or the order of performance oftwo or more steps permuted. All such variations are considered to beencompassed within the disclosure and claims herein.

It will be further appreciated that while certain steps and aspects ofthe various methods and apparatus described herein may be performed by ahuman being, the disclosed aspects and individual methods and apparatusare generally computerized/computer-implemented. Computerized apparatusand methods are necessary to fully implement these aspects for anynumber of reasons including, without limitation, commercial viability,practicality, and even feasibility (i.e., certain steps/processes simplycannot be performed by a human being in any viable fashion).

While the above detailed description has shown, described, and pointedout novel features of the disclosure as applied to various embodiments,it will be understood that various omissions, substitutions, and changesin the form and details of the device or process illustrated may be madeby those skilled in the art without departing from the disclosure. Theforegoing description is of the best mode presently contemplated ofcarrying out the disclosure. This description is in no way meant to belimiting, but rather should be taken as illustrative of the generalprinciples of the disclosure. The scope of the disclosure should bedetermined with reference to the claims.

What is claimed is:
 1. A method for efficiently delivering electronicprogram guide (EPG) data from a network computerized entity to one ormore client devices, a first computerized client device of said one ormore client devices in data communication with said network computerizedentity, said first computerized client device in further datacommunication with at least one other of said one or more clientdevices, said method comprising: receiving a plurality of guide data atsaid first computerized client device from said network computerizedentity; pre-processing at least a first portion of said plurality ofguide data, via said first computerized client device, to generate afirst HTML representation comprising one or more first static elementscorresponding to a first of a plurality of display screens of an EPGdigital representation; and providing, from said first computerizeddevice to said at least one other of said one or more client devices,said first HTML representation; predicting, via said first computerizedclient device, a second of said plurality of display screens of said EPGdigital representation based at least in part on one or more of: (i)data indicative of user behavior with respect to said EPG digitalrepresentation, or (ii) a determination of all possible subsequent usercommands from said first HTML representation; based at least in part onsaid predicting, pre-processing at least a second portion of saidplurality of guide data, via said first computerized client device, togenerate at least a second HTML representation comprising one or moresecond static elements corresponding to said predicted second of saidplurality of display screens of said EPG digital representation; whereinsaid pre-processing said first portion of said plurality of guide dataat said first computerized client device at least partially obviatesprocessing of said first portion of said plurality of guide data at saidat least one other of said one or more client devices.
 2. The method ofclaim 1, wherein said act of receiving said data indicative of said usercommand comprises receiving data indicative of an input command via atleast one of Bluetooth, local area wireless, Multimedia over CoaxAlliance (MoCA), a wired connection, or a physical button input.
 3. Themethod of claim 1, further comprising evaluating, via said firstcomputerized client device, (i) a capability of said at least one otherof said one or more client devices and/or (ii) an available networkbandwidth; wherein pre-processing said first portion of said pluralityof guide data comprises generating said first HTML representation basedat least in part on said evaluating.
 4. The method of claim 1, whereinsaid providing of said first HTML representation to said at least oneother of said one or more client devices comprises delivery thereof in aformat appropriate for said at least one other of said one or moreclient devices.
 5. The method of claim 1, further comprisingauthenticating with said network computerized entity, via said firstcomputerized client device, said at least one other of said one or moreclient devices.
 6. The method of claim 1, further comprising storingsaid first HTML representation at a storage device in data communicationwith said first computerized client device.
 7. The method of claim 1,further comprising: determining that said plurality of guide data isinsufficient; and based at least in part on said determining, receiving,at said first computerized device from said network computerized entity,an update comprising a second plurality of guide data.
 8. The method ofclaim 1, further comprising: after said act of pre-processing saidsecond portion of said plurality of guide data, receiving, at said firstcomputerized client device from said at least one other of said one ormore client devices, data indicative of a user command with respect tosaid first of said plurality of display screens of said EPG digitalrepresentation; and based at least in part on said data indicative ofsaid user command, providing, from said first computerized device tosaid at least one other of said one or more client devices, said secondHTML representation.
 9. The method of claim 1, further comprisingreceiving, at said first computerized device from said at least oneother of said one or more client devices, said data indicative of saiduser behavior with respect to said EPG digital representation, said dataindicative of said user behavior comprising data indicative of detectionof a movement of a user-controlled selection icon toward a commandbutton of said EPG digital representation.
 10. A gateway apparatusconfigured for delivering pre-processed electronic program guide (EPG)data to a client device, said gateway apparatus comprising: a datacommunication interface, said gateway apparatus in data communicationwith at least a network computerized entity and one or more clientdevices via said data communication interface; processor apparatus; andstorage apparatus in data communication with said processor apparatusand having at least one computer program stored thereon, said at leastone computer program operative to run on said processor apparatus, saidcomputer program comprising a plurality of instructions which areconfigured to, when executed by said processor apparatus, cause saidgateway apparatus to: receive a plurality of guide data from saidnetwork computerized entity via said data communication interface;receive data indicative of a first user command associated with an EPGdigital representation from at least one of said one or more clientdevices; based at least in part on said data indicative of said firstuser command, pre-process at least a first portion of said plurality ofguide data, said first portion of said plurality of guide dataconfigured to generate a first one of: a still image, a video clip, or awebpage representative of a first display screen for said EPG digitalrepresentation; transmit said pre-processed first plurality of guidedata to said at least one one of said one or more client devices viasaid data communication interface; determine all possible user commandssubsequent to said first user command; and based at least in part onsaid determination, pre-process at least a second portion of saidplurality of guide data, said second plurality of guide data configuredto generate one or more other still images, video clips, or webpagesrepresentative of one or more other display screens of said EPG digitalrepresentation, said one or more other display screens of said EPGdigital representation corresponding to at least a portion of saiddetermined all possible subsequent user commands; wherein said ofpre-process of said first portion of said plurality of guide data leastpartially obviates process of said first portion of said plurality ofguide data at said at least one of said one or more client devices. 11.The gateway apparatus of claim 10, wherein said plurality ofinstructions are further configured to, when executed by said processorapparatus, cause said gateway apparatus to store said pre-processedfirst plurality of guide data at said storage apparatus.
 12. The gatewayapparatus of claim 10, wherein said data communication interfacecomprises one or more capabilities for: radio frequency (RF), local areawireless, Bluetooth, universal serial bus (USB), wireless, or Ethernet.13. The gateway apparatus of claim 10, wherein said plurality ofinstructions are further configured to, when executed by said processorapparatus, cause said gateway apparatus to: receive data indicative of asecond user command with respect to said first display screen for saidEPG digital representation from said at least one of said one or moreclient devices; and based at least in part on said data indicative ofsaid second user command, automatically transmit said pre-processedsecond portion of said plurality of data to said at least one of saidone or more client devices via said data communication interface, saidpre-processed second portion of said plurality of data configured togenerate one of said one or more other still images, video clips, orwebpages.
 14. The gateway apparatus of claim 13, wherein a wait time fortransmission of a response to said data indicative of said second usercommand is reduced relative to a standard wait time based at least inpart on: (i) said determination of said all possible user commandssubsequent of said first user command, (ii) said pre-process of saidsecond portion of said plurality of guide data, (iii) and said automatictransmission of said at least portion of said pre-processed secondportion of said plurality of guide data.
 15. A computerized clientapparatus configured for delivering pre-processed electronic programguide (EPG) data to at least one client device, said computerized clientapparatus comprising: a data communication interface, said computerizedclient apparatus in data communication with at least a networkcomputerized entity and said at least one client device via said datacommunication interface; processor apparatus; and storage apparatus indata communication with said processor apparatus and having at least onecomputer program stored thereon, said at least one computer programoperative to run on said processor apparatus, said at least one computerprogram comprising a plurality of instructions which are configured to,when executed by said processor apparatus, cause said computerizedclient apparatus to: receive guide data from said network computerizedentity via said data communication interface; receive data indicative ofa first user command with respect to an EPG digital representation fromsaid at least one client device; based at least in part on said dataindicative of said first user command, pre-process at least a firstportion of said guide data, said at least first portion of said guidedata configured to generate a first one of: a still image, a video clip,or a webpage representative of a first display screen of said EPGdigital representation; transmit said pre-processed at least firstportion of guide data to said at least one client device via said datacommunication interface; predict a second display screen of said EPGdigital representation subsequent to said first display screen of saidEPG digital representation, said prediction based at least in part ondata indicative of user behavior with respect to said first one of saidstill image, video clip, or web page; and based at least in part on saidprediction, pre-process at least a second portion of said guide data,said at least second portion of said guide data configured to generate asecond one of: a still image, a video clip, or a webpage representativeof said predicted second display screen of said EPG digitalrepresentation; wherein said client apparatus is configured to utilizesaid pre-processed at least first portion of said guide data.
 16. Thecomputerized client apparatus of claim 15, wherein said plurality ofinstructions are further configured to, when executed by said processorapparatus, cause said computerized client apparatus to: after saidpre-process of said at least second portion of said of guide data,receive, from said at least one client device, data indicative of asecond user command with respect to said EPG digital representation; andbased at least in part on said data indicative of said second usercommand, automatically transmit said pre-processed at least secondportion of said guide data to said at least one client device.
 17. Thecomputerized client apparatus of claim 16, wherein a wait time fortransmission of a response to said data indicative of said second usercommand is reduced relative to a standard wait time based at least inpart on (i) said pre-process of said at least second portion of said ofguide data and (ii) said automatic transmission of said pre-processed atleast second portion of said guide data.
 18. The computerized clientapparatus of claim 15, wherein said plurality of instructions arefurther configured to, when executed by said processor apparatus, causesaid computerized client apparatus to receive said data indicative ofsaid user behavior from said at least one client device, said dataindicative of said user behavior comprising data indicative ofidentification of a movement of a user-controlled selection icon towarda command button of said EPG digital representation.
 19. Thecomputerized client apparatus of claim 15, wherein said plurality ofinstructions are further configured to, when executed by said processorapparatus, cause said computerized client apparatus to determine allpossible user commands subsequent to said first user command; whereinsaid pre-process of said at least second portion of said guide data isfurther based at least in part on said determination.
 20. Thecomputerized client apparatus of claim 15, wherein said computerizedclient apparatus is further configured to utilize said pre-processed atleast second portion of said plurality of guide data, and is notconfigured to perform said preprocessing of said at least second portionof said plurality of guide data.